Did You Know...
...that it was melting ice cream that inspired the invention of the outboard motor? It was a lovely August day and Ole Evinrude was rowing his boat to his favorite island picnic spot. As he rowed, he watched his ice cream melt and wished he had a faster way to get to the island. At that moment the idea for the outboard motor was born!
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| Number | Title | Issue Date |
| 7942154 | Cigarette filter material and cigarette filter The present invention provides a cigarette filter material useful for selectively and efficiently reducing formaldehyde while maintaining a palatable component such as nicotine or tar. The cigarette filter material is obtained by coating-treating a substrate (such a... | 05/17/2011 |
| 7302954 | Cigarette filter comprising grape proanthocyanidin To a constitutive element of a tobacco (a leaf-tobacco component or a filter) is added a proanthocyanidin or a proanthocyanidin-carrying porous material (such as an active carbon) to obtain an element for tobacco smoke. The proanthocyanidin may be at least one extra... | 12/04/2007 |
| 7300394 | Method and device for producing a filter rod Method and device for producing a filter rod. The method includes melting at least one first type of filter material, pressing the at least one first type of filter material through at least one nozzle, depositing the at least one first type of filter material on a ... | 11/27/2007 |
| 7160366 | Filter element An improved filter element which can be used in gas masks is formed of short lengths of porous monolithic carbon formed by partially curing a phenolic resin to a solid, comminuting the partially cured resin, extruding the comminuted resin, sintering the extruded res... | 01/09/2007 |
| 7138078 | Process for producing foarmed articles and the foamed article It is an object of the present invention to provide a method for manufacturing a high-quality foam that can be produced stably on an industrial scale and that affords excellent thermal insulation as a foam with thin cell membranes, which method ensures uniform molte... | 11/21/2006 |
| 7114503 | Process for producing an open celled foam The invention relates to a foam for purifying and filtrating air, particularly filtrating toxic compounds, such as for instance tar and polycyclic aromatic hydrocarbons (PAHs) from tobacco smoke, and to a method to prepare this foam. The foam according to the invent... | 10/03/2006 |
| 7104265 | Filter containing a metal phthalocyanine and a polycationic polymer A tobacco smoke filter comprising one or more than one metal phthalocyanine, such as a copper phthalocyanine or an iron phthalocyanine, and further comprising one or more than one polycationic polymer. ... | 09/12/2006 |
| 7022200 | Method of making adhesive-free bonded porous thermoplastic nibs for markers and highlighter applications A method and an apparatus are described for making porous thermoplastic nibs which are adhesive-free and plasticizer-free. The method comprises the steps of feeding a coherent fibrous structure into a compacting, shaping and bonding die, heating the surface of the f... | 04/04/2006 |
| 6938781 | Three-dimensional non-woven filter A non-woven depth filter cartridge includes a cylindrical mass of essentially continuous melt-blown polymer filaments and an essentially continuous traversing melt-blown polymer filament extending through the mass. The mass has a depth dimension, a longitudinal dime... | 09/06/2005 |
| 6907885 | High efficiency cigarette filters having shaped micro cavity fibers impregnated with adsorbent or absorbent materials This invention is a highly efficient filter containing fibers that contain small particle size adsorbents/absorbents such as carbon and/or silica to selectively reduce targeted components in mainstream cigarette smoke. The invention relates to a novel class of highl... | 06/21/2005 |
| 6866045 | Filtration method and filter consisting of nitrogen-containing cycles or heterocycles such as DNA or RNA The methods concerns a method for general use and more particularly used for tobacco products. The method uses in particular nitrogen-containing heterocycles such as DNA and RNA bases and complementarily polymer fibers. Said molecules and said fibers can partly halo... | 03/15/2005 |
| 6796312 | Process and apparatus for the removal of toxic components of tobacco smoke and the standardization of the health hazards related to those components The oral cavity is a source of sensitive biomarkers that allow the development of novel tobacco filters to reverse and eliminate acute adverse effects of tobacco smoke. Useful biomarkers are ubiquitous functional leukocytes and associated essential biochemical mecha... | 09/28/2004 |
| 6739344 | Biodegradable cellulose acetate structure and tobacco filter A cellulose acetate structure excellent in its biodegradability. At least a surface region of the structure includes a biodegradable cellulose acetate composition containing a biodegradation promoting agent contained in cellulose acetate. The agent includes at least... | 05/25/2004 |
| 6615842 | Methods for removing nucleophilic toxins from tobacco smoke This invention provides methods, devices and agents for the removal of nucleophilic toxins present in tobacco and tobacco smoke. The filter element of a tobacco smoking device or an air filtration device used in conjunction with a tobacco smoking device m... | 09/09/2003 |
| 6595218 | Cigarette filter A cigarette filter having a reagent which chemically reacts with and removes a gaseous component of a smoke stream. The reagent contains functional groups covalently bonded to a non-volatile inorganic substrate which is incorporated in the filter. The fil... | 07/22/2003 |
| 6591839 | Filter material for reducing harmful substances in tobacco smoke A filter material for reducing the content of harmful substances in tobacco smoke. The filter material comprises a ground and not additionally activated expanded clay produced without adding foreign substances, and zeolite as the filter material. The filt... | 07/15/2003 |
| 6584979 | High efficiency cigarette filters having shaped microcavity fibers impregnated with adsorbent or absorbent materials This invention is a highly efficient filter containing fibers that contain small particle size adsorbents/absorbents such as carbon and/or silica to selectively reduce targeted components in mainstream cigarette smoke. The invention relates to a novel cla... | 07/01/2003 |
| 6571802 | Molded article of biodegradable cellulose acetate and filter plug for smoking article A molded article molded from a cellulose acetate composition comprising, contained in cellulose acetate, a composite material of a decomposition accelerating agent formed of at least one compound selected from the group consisting of oxygen acid of phosph... | 06/03/2003 |
| 6530377 | Cigarette filter containing dry water and a porphyrin A tobacco smoke filter comprising a porous substrate comprising dry water and a porphyrin dispersed therein. The porous substrate can further comprise microcapsules. The microcapsules can comprise one or more substances selected from the group consisting ... | 03/11/2003 |
| 6309509 | Composition and paper comprising cellulose ester, alkylpolyglycosides, and cellulose This invention relates to compositions, paper, thermoplastic sheets, and medical paper containing cellulose ester, alkylpolyglycoside (APG) or a mixture of APG and polyether glycol, and, optionally, cellulose. The process of incorporating APG or a mixture... | 10/30/2001 |
| 6273095 | Cigarette filter which removes carcinogens and toxic chemicals Disclosed herein is a filter for use with tobacco products, such as cigarettes, cigars and pipes, which selectively absorbs toxic compounds and carcinogenic polynuclear aromatic compounds passing through it, but which permits most low molecular weight spe... | 08/14/2001 |
| 6209547 | Cigarette filter A cigarette filter having a reagent which chemically reacts with and removes a gaseous component of a smoke stream. The reagent contains functional groups covalently bonded to a non-volatile inorganic substrate which is incorporated in the filter. The fil... | 04/03/2001 |
| 6193841 | Shaped, plastic articles comprising a cellulose fiber, a cellulose ester, and a non-ionic surfactant This invention relates to compositions, paper, thermoplastic sheets, and medical paper containing cellulose ester, alkylpolyglycoside (APG) or a mixture of APG and polyether glycol, and, optionally, cellulose. The process of incorporating APG or a mixture... | 02/27/2001 |
| 6145511 | Filter cigarette A description is given of a filter cigarette, whose filter a) contains fibrous filter material, b) contains an additive with an antimutagenic action on the cigarette smoke in a quantity of less than 15 wt. %, based on the fiber weight of the filter and c) on s... | 11/14/2000 |
| 6119701 | Methods, agents and devices for removing nucleophilic toxins from tobacco and tobacco smoke This invention provides methods, devices and agents for the removal of nucleophilic toxins present in tobacco and tobacco smoke, without the removal of nicotine. The filter element of a tobacco smoking device or an air filtration device used in conjunctio... | 09/19/2000 |
| 6080457 | Particulate sorbent smoke filter A smoke filter consists of substrate threads and/or strips each pre-coated with particulate sorbent (e.g. activated carbon granules), gathered together in solid or tubular rod form e.g. within a containing sleeve. When the gathered threads and/or strips f... | 06/27/2000 |
| 6062228 | Biodegradable filter material and method for its manufacture There is provided a biodegradable filter tow or filter material from renewable raw materials for the use as a tobacco smoke filter element of cigarettes, cigars or pipes as well as a method for preparing it, wherein fibers, films or foams prepared in an e... | 05/16/2000 |
| 6026819 | Tobacco smoke filter incorporating sheath-core bicomponent fibers and tobacco smoke product made therefrom Bicomponent fibers comprising a core of a thermoplastic material, preferably polypropylene, and a sheath of a blend of the core-forming polymer and an ethylene-vinyl acetate copolymer are used to produce tobacco smoke filter elements which may be incorpor... | 02/22/2000 |
| 5998500 | Method of making a filter with interpenetrating polymer network that biodegrades This invention relates to a filter and a method of making a filter. The filter is made of randomly orientated fibers made from an interpenetrating network formed from at least two polymers which are substantially water soluble in their salt form and which... | 12/07/1999 |
| 5979460 | Method of producing tobacco filters A tobacco filter with a circumferential length of 17 to 27 mm is prepared by creping or embossing, with a roller of a temperature not lower than 100° C., a sheet-like material comprising not less than 20% by weight of a cellulose ester component and havi... | 11/09/1999 |
| 5975086 | Cigarette filter containing dry water and microcapsules A tobacco smoke filter consisting essentially of a porous substrate having dry water and microcapsules dispersed therein. The microcapsules comprise at least one substance selected from the group consisting of chlorophyllin, methylcellulose, sodium pyrogl... | 11/02/1999 |
| 5970988 | Environmentally non-persistant cellulose ester fibers This invention provides cellulose ester fibers having an intermediate degree of substitution per anhydroglucose unit (DS/AGU) along with pigments which act as photooxidation catalysts. The fibers are useful as filter materials for tobacco products. The fi... | 10/26/1999 |
| 5967149 | Tobacco filter material and a method of producing the same Using a slurry containing a particulate or fibrous cellulose ester and a wood pulp with a Canadian standard freeness of 100 to 800 ml in a ratio of 10/90 to 90/10 (weight %), a tobacco filter material in the form of a sheet having a nonwoven web structure... | 10/19/1999 |
| 5954059 | Filtration materials An extruded filtration material which is degradable and comprises either a plastics material or an inorganic material having a melting point above the operating temperature, a polysaccharide expansion medium, a binder and water. These ingredients are fed ... | 09/21/1999 |
| 5947127 | Tobacco filters and method of producing the same A filter rod is produced by adding a water-soluble polymer in the form of an aqueous solution or dispersion, or in a particulate form, to a tow of cellulose ester fiber, with the amount of any water used being controlled within 25 parts by weight relative... | 09/07/1999 |
| 5947126 | Environmentally disintegratable tobacco smoke filter rod A bundle of cellulose acetate fibers is bonded together with a water-soluble fiber-to-fiber bonding agent. The water-soluble fiber-to-fiber bonding agent may include 60-99 wt. % of a water-soluble binder and 40-1 wt. % of a plasticizer. As to the specific... | 09/07/1999 |
| 5927287 | Tobacco filter material and a tobacco filter as produced using the same A tobacco filter is produced by wrapping up a sheet-like filter material having a web structure and comprising a cellulose ester short staple into a rodform. As the cellulose ester short staple, a short staple that is non-crimped and/or has a modified cro... | 07/27/1999 |
| 5913311 | Cigarette filter and filter material therefor A filter material comprises a cellulose acetate fiber tow containing 5-50% by weight of a water soluble material and/or a water dispersible material which are soluble in a solvent which dissolves cellulose acetate and which are not compatible with cellulo... | 06/22/1999 |
| 5911224 | Biodegradable polyvinyl alcohol tobacco smoke filters, tobacco smoke products incorporating such filters, and methods and apparatus for making same A porous element particularly for use as a tobacco smoke filter plug in association with a cigarette or the like wherein the matrix comprises a multiplicity of biodegradable polyvinyl alcohol fibers bonded together at their points of contact to define a t... | 06/15/1999 |
| 5860428 | Cigarette filter containing a humectant A cigarette filter comprises a humectant, preferably sodium pyroglutamate, and optionally a surfactant. The humectant absorbs moisture from the tobacco smoke for wet-filtration of the tobacco smoke.... | 01/19/1999 |
